CN111693253B - Pressure vessel owner bolt hole detection device - Google Patents
Pressure vessel owner bolt hole detection device Download PDFInfo
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- CN111693253B CN111693253B CN202010578995.5A CN202010578995A CN111693253B CN 111693253 B CN111693253 B CN 111693253B CN 202010578995 A CN202010578995 A CN 202010578995A CN 111693253 B CN111693253 B CN 111693253B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a pressure vessel main bolt hole detection device, which comprises a laser scanning detection system, a positioning system and a control system, wherein the laser scanning detection system is used for detecting the main bolt hole of a pressure vessel; the laser scanning detection system and the positioning system are both detachably mounted on the rack; the positioning system is used for realizing the positioning of the detection device; the laser scanning detection system is used for scanning and measuring the interior of the main bolt hole, obtaining structural parameters of the inner surface of the main bolt hole and transmitting the structural parameters to the control system; and the control system is used for receiving and processing the structural parameters of the inner surface of the main bolt hole to obtain the detection result of the main bolt hole. The method utilizes the laser detection principle to automatically detect the main bolt hole of the reactor pressure vessel; compared with the traditional visual inspection or video-assisted visual inspection, the method has higher detection efficiency and precision, can realize multi-dimensional detection and evaluation on a plurality of key parameters, and has more comprehensive detection and evaluation results.
Description
Technical Field
The invention relates to the technical field of nuclear equipment maintenance, in particular to a pressure vessel main bolt hole detection device and an automatic detection device applied to a main bolt hole of a nuclear reactor pressure vessel.
Background
When the reactor operates, the pressure vessel is mainly sealed by the main bolt, and the good connection performance of the main bolt and the main bolt hole is very important. However, the main threaded hole of the pressure vessel is easily subjected to fatigue and damage under high temperature, high stress and cyclic loads under different working conditions for a long time; in addition, the reactor pressure vessel needs to be opened and closed for many times in the whole service life, and the threads are not thoroughly cleaned and repaired due to insufficient detection accuracy of the states of the main bolt holes, and are easily damaged in the process of reassembly. Consequently, when the reactor maintenance back of uncapping, need examine reactor pressure vessel king-bolt hole to guarantee that its performance meets the demands, also avoid the repacking process to cause the damage to it.
As the main bolt hole maintenance work of the pressure vessel is a main line key path of the reactor maintenance, the maintenance period of the efficiency direct relation is realized. At present, a method of manual visual inspection or video-assisted manual inspection is mainly adopted for the inspection of the main bolt hole of the pressure vessel. The detection mode has low detection efficiency and occupies a large amount of maintenance time; the detection precision is low, and the false judgment is easily caused by repeated manual visual detection in a large quantity.
The nuclear power development of China enters the golden development period, and a large number of built and proposed nuclear power stations have more and more urgent needs on a fast, efficient, accurate and safe reactor pressure vessel kingbolt automatic detection device.
Disclosure of Invention
The invention provides a pressure vessel main bolt hole detection device, which aims to meet the requirement of nuclear reactor pressure vessel main bolt hole detection. The invention adopts the laser detection technology to realize automatic detection and evaluation of key parameters of the main bolt hole of the pressure vessel, solves the problems of high labor intensity and easy occurrence of misjudgment of the existing manual detection or video-assisted manual visual detection, and improves the detection precision and efficiency of the main bolt hole of the pressure vessel. The device also can be used for detecting the performance of large bolt holes of other pressure-bearing equipment.
The invention is realized by the following technical scheme:
a pressure vessel main bolt hole detection device comprises a laser scanning detection system, a positioning system and a control system;
the laser scanning detection system and the positioning system are both detachably arranged on the rack;
the positioning system is used for realizing the positioning of the detection device;
the laser scanning detection system is used for scanning and measuring the interior of the main bolt hole, obtaining structural parameters of the inner surface of the main bolt hole and transmitting the structural parameters to the control system;
and the control system is used for receiving and processing the structural parameters of the inner surface of the main bolt hole to obtain the detection result of the main bolt hole.
According to the invention, the automatic detection device comprising the laser scanning detection system, the positioning system and the control system is arranged, and the automatic detection of the main bolt structure of the pressure vessel is realized by the laser scanning detection principle.
Preferably, the laser scanning detection system of the invention is realized by using the laser detection principle,
the laser scanning detection system comprises: the device comprises a laser scanning detection system fixing support, a laser scanning detection system mounting bottom plate, a detection head, a rotating mechanism and a moving mechanism;
the laser scanning detection system fixing support is fixedly arranged on the laser scanning detection system mounting base plate;
the moving mechanism is fixedly arranged on the fixed support;
the rotating mechanism is arranged on the moving mechanism, and the moving mechanism can drive the rotating mechanism to move up and down along the vertical direction of the fixed support;
the detection head is arranged at the tail end of a rotating shaft of the rotating mechanism and can rotate under the driving of the rotating mechanism;
the detection head is used for scanning and detecting the inner surface of the main bolt hole to obtain the surface structure parameters of the main bolt hole;
the laser scanning detection system is mounted on the bottom plate and is mounted on the rack in a dismounting mode.
The detection head of the invention adopts the modes of but not limited to laser scanning detection and video detection to realize the detection of the inner surface structure of the main bolt hole to be detected. Preferably, the detection head of the present invention includes a video detection head and a laser detection head.
The rotating mechanism of the present invention is not limited to a motor-driven manner. Preferably, the rotating mechanism of the invention comprises a rotating shaft, a rotating platform and a rotating motor;
the rotating motor is fixedly arranged on the moving mechanism;
the rotating motor drives the rotating shaft to rotate through the rotating platform, and then drives the detection head mounted at the tail end of the rotating shaft to rotate.
The moving mechanism of the invention adopts but not limited to a guide rail-screw pair technology to realize the movement. Preferably, the moving mechanism comprises a detection head moving frame, a detection head moving guide rail-screw pair, a coupler and a detection head moving motor;
the detection head moving motor is fixedly arranged on the fixed support, and the guide rail in the detection head moving guide rail-lead screw pair is fixedly arranged along the vertical direction of the fixed support; a screw rod in the detection head moving guide rail-screw rod pair is in transmission connection with the detection head moving motor through a coupler;
the detection head moving frame is arranged on the detection head moving guide rail-screw rod pair and is fixedly connected with the rotating mechanism.
The detection head moving frame can move up and down along the vertical direction of the fixed support under the driving of the detection head moving motor.
In order to realize the stability and reliability of positioning, the invention adopts but not limited to two groups of positioning systems to realize positioning, and adopts but not limited to an expansion positioning mode to realize fixed positioning. Preferably, the detection device comprises two groups of positioning systems, and the two groups of positioning systems have the same structure;
the positioning system comprises a positioning system bracket, a positioning system jacking mechanism, a positioning system mounting bottom plate, a proximity switch and a positioning system expanding plug mechanism;
the positioning system bracket is fixedly arranged on the positioning system mounting bottom plate;
the positioning system jacking mechanism and the proximity switch are both arranged on the positioning system bracket;
the positioning system expansion plug mechanism is arranged on the positioning system jacking structure and can be driven by the positioning system jacking mechanism to move up and down along the vertical direction of the positioning system bracket;
the positioning system is quickly assembled and disassembled with the rack through a positioning system mounting bottom plate;
the positioning system expansion plug mechanism can drive the expansion plug head to expand in the main threaded hole to realize positioning, namely, the detection device realizes fixation in the left and right adjacent main bolt holes of the main bolt hole to be detected through two groups of positioning systems.
Preferably, the positioning system jacking mechanism comprises a positioning system jacking push rod, a positioning system jacking motor and an expansion plug head moving guide rail;
the positioning system jacking motor is fixed on the positioning system bracket; the expansion plug head moving guide rail is fixedly installed along the vertical direction of the positioning system bracket; the positioning system expansion plug mechanism is movably connected with the expansion plug head guide rail;
the positioning system jacking motor is in transmission connection with the positioning system jacking push rod and drives the positioning system jacking push rod to move so as to drive the positioning system expanding mechanism to move up and down along the expanding plug head guide rail;
preferably, the expansion plug mechanism of the positioning system comprises an expansion plug head, an expansion plug push rod and an expansion plug motor;
the positioning system jacking mechanism drives the positioning system expansion plug mechanism to move downwards, and after the expansion plug head moves downwards to the right position, the expansion plug motor drives the expansion plug push rod to move, so that the expansion plug head expands in the adjacent main bolt hole of the main bolt to be detected to realize positioning.
The invention adopts the industrial personal computer to realize the acquisition and processing of the detection data, and uploads the detection data to the upper computer for further storage, analysis and visual output, and the industrial personal computer can receive the control signal sent by the upper computer and is used for controlling the automatic control of the laser scanning detection system and the positioning system. Preferably, the control processing system comprises an I/O module, an industrial personal computer and an upper computer;
the laser scanning detection system and the positioning system are in data communication with the industrial personal computer through an I/O (input/output) module, the laser scanning detection system can transmit detected inner surface structure parameters of the main bolt to be detected to the industrial personal computer for storage and analysis and can receive a control signal issued by the industrial personal computer, and the positioning system can upload a positioning signal to the industrial personal computer and can receive the control signal issued by the industrial personal computer; the industrial personal computer is in communication connection with the upper computer, can receive control signals sent by the upper computer and can upload detection data and analysis results to the upper computer for further processing analysis or display output.
On the other hand, the invention also provides a system for detecting the main bolt holes of the reactor pressure vessel.
The invention has the following advantages and beneficial effects:
1. the detection device for the main bolt hole of the pressure vessel is convenient to install and simple to operate, and can automatically detect the main bolt hole of the reactor pressure vessel by utilizing a laser detection principle; compared with the traditional visual inspection or video-assisted visual inspection, the method has higher detection efficiency and precision, can realize multi-dimensional detection and evaluation on a plurality of key parameters, and has more comprehensive detection and evaluation results.
2. The detection device can be matched with other actuating mechanisms to realize full-automatic detection of all main bolt holes of the pressure vessel.
3. The detection device has a wide application range, can be used for detecting the main bolt holes of multi-model reactor pressure vessels, and can also be used for detecting the main bolt holes of other large pressure-bearing vessels;
4. the detection device adopts a modular design, is convenient to disassemble, can be disassembled and stored and transported in blocks, is favorable for protecting precise parts of the device and is also favorable for improving functions.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a front view of the inspection device of the present invention.
Fig. 2 is a schematic structural diagram of a laser scanning detection system according to the present invention.
Fig. 3 is a schematic structural diagram of a positioning system according to the present invention.
Reference numbers and corresponding part names in the drawings:
1-laser scanning detection system, 2-positioning system, 3-device rack, 5-I/O module, 6-laser scanning detection system fixed support, 7-industrial computer, 8-laser scanning detection system installation bottom plate, 9-video detection head, 10-laser detection head, 11-rotating shaft, 12-rotating platform, 13-detection head rotating motor, 14-detection head moving frame, 15-detection head moving lead screw, 16-detection head moving guide rail, 17-coupler, 18-detection head moving motor, 19-laser scanning detection system shell, 20-positioning system support, 21-positioning system jacking push rod, 22-positioning system jacking motor, 23-positioning system installation bottom plate, 24-proximity switch, 25-expansion plug head, 26-positioning system expansion plug push rod, 27-positioning system expansion plug motor, 28-expansion plug head moving guide rail and 29-positioning system shell.
Detailed Description
Hereinafter, the term "comprising" or "may include" used in various embodiments of the present invention indicates the presence of the invented function, operation or element, and does not limit the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as terms defined in a commonly used dictionary) will be construed to have the same meaning as the contextual meaning in the related art and will not be construed to have an idealized or overly formal meaning unless expressly so defined in various embodiments of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
The embodiment provides a pressure vessel kingbolt hole detection device.
As shown in fig. 1, the detection apparatus of the present embodiment is mainly composed of a laser scanning detection system 1, a positioning system 2, a frame 3, and a control processing system (not shown in fig. 1).
The laser scanning detection system 1 mainly scans and measures the interior of a main bolt hole by driving a laser detection head at the tail end of the laser scanning detection system to obtain structural parameters of the inner surface of a threaded hole; the positioning system 2 fixes the detection device in two adjacent main bolt holes of the main bolt hole to be detected through a telescopic expansion plug structure, so that the device is positioned and fixed in the detection process; the rack 3 provides a support for mounting each system, so that each system can be conveniently disassembled, assembled and used; the control processing system 4 controls each moving part of the whole device to realize each operation in the detection process, and the system also processes the structural parameters of the inner surface of the threaded hole obtained by the laser scanning detection system 1 to obtain key parameters of the threaded hole and realize the evaluation of the hole performance of the main bolt.
The detection device of this embodiment adopts the modularized design, the dismouting of being convenient for, laser scanning detecting system 1 and positioning system 2 are demountable installation in the frame promptly. In addition, in the embodiment, two sets of positioning systems 2 are adopted, and the two sets of positioning systems 2 have the same structure, so as to realize the positioning of the detection device.
Specifically, as shown in fig. 2, the laser scanning detection system 1 of the present embodiment includes: the device comprises a laser scanning detection system fixing support 6, a laser scanning detection system mounting base plate 8, a video detection head 9, a laser detection head 10, a rotating shaft 11, a rotating platform 12, a detection head rotating motor 13, a detection head moving frame 14, a detection head moving lead screw 15, a detection head moving guide rail 16, a coupler 17, a detection head moving motor 18 and a laser scanning detection system shell 19.
Wherein, the laser scanning detection system fixing bracket 6 is fixedly arranged on the laser scanning detection system mounting base plate 8; the detection head moving motor 18 is fixedly arranged on the laser scanning detection system fixing support 6, and the detection head moving guide rail 16 is fixedly arranged along the vertical direction of the laser scanning detection system fixing support 6; the detection head moving screw rod 15 and the detection head moving guide rail 16 form a guide rail-screw rod pair, a detection head moving motor 18 is in transmission connection with the detection head moving screw rod 15 through a coupler 17, and a detection head moving frame 14 is movably mounted on the detection head moving screw rod 15; the detection head rotating motor 13 is fixedly arranged on the detection head moving frame 14, the detection head moving motor 18 drives the detection head moving screw rod 15 to rotate, and further drives the detection head moving frame 14 to move up and down along the vertical direction of the laser scanning detection system fixing frame 6, so that the detection head is driven to move up and down; the detection head rotating motor 13 drives the rotating shaft 11 to rotate through the rotating platform 12, and then drives the detection heads (the video detection head 9 and the laser detection head 10) mounted at the tail end of the rotating shaft 11 to rotate, so that scanning detection of the inner surface of the main bolt hole to be detected is realized.
The laser scanning detection system 1 of the present embodiment is attached to and detached from the apparatus frame 3 through the laser scanning detection system mounting base plate 8.
The components of the laser scanning detection system 1 of the present embodiment are all disposed in the laser scanning detection system housing 19 to realize a modular design.
As shown in fig. 3, the positioning system of this embodiment includes a positioning system bracket 20, a positioning system jacking push rod 21, a positioning system jacking motor 22, a positioning system mounting base plate 23, a proximity switch 24, an expanding plug head 25, a positioning system expanding plug push rod 26, a positioning system expanding plug motor 27, an expanding plug head moving guide rail 28, and a positioning system housing 29.
Wherein the positioning system bracket 20 of the present embodiment is fixedly mounted on the positioning system mounting base plate 23;
the positioning system jacking motor 22 and the proximity switch 24 of the embodiment are both arranged on the positioning system bracket 20;
the expansion plug head moving guide rail 28 of the embodiment is fixedly installed along the vertical direction of the positioning system bracket 20; the positioning jacking motor 22 is in driving connection with the positioning jacking push rod 21, and drives the positioning system jacking push rod 21 to move, so that the expansion plug head 25, the positioning system expansion plug push rod 26 and the positioning system expansion plug motor 27 are pushed to move up and down along the expansion plug head guide rail 28. When the expansion plug head 25 moves downwards to the right position, the expansion plug push rod 26 is driven to move by the expansion plug motor 27, so that the expansion plug head 25 expands in two main bolt holes adjacent to the left main bolt and the right main bolt to be detected to realize fixation, and the fixation and the positioning of the detection device are realized.
The positioning system 2 of the embodiment is quickly disassembled and assembled with the device frame 3 through the positioning system mounting bottom plate 23; all parts of the positioning system 2 are arranged in a positioning system shell 29, so that the modular design is realized.
The control processing system in this embodiment includes I/O module 5, industrial computer 7 and host computer, adopts industrial computer 7 to realize the collection and the processing to the detected data to upload to the host computer and further carry out storage, analysis and visual output, can receive the control signal that the host computer was issued through industrial computer 7, be used for control laser scanning detecting system 1, positioning system 2's automatic control.
Specifically, the laser scanning detection system 1 and the positioning system 2 of this embodiment both carry out data communication with the industrial personal computer 7 through the I/O module, and the laser scanning detection system 1 can send the detected structure parameters of the inner surface of the main bolt to be detected to the industrial personal computer 7 for storage, analysis and uploading to the host computer, and can receive the control signal issued by the industrial personal computer 7 to control the detection head, the rotating belt motor 13 and the moving motor 18 to work.
The positioning system 2 can upload a detection signal of the proximity switch 24 to the industrial personal computer 7 and can receive a control signal sent by the industrial personal computer 7 to control the operation of the jacking motor 22 and the expansion plug motor 27 of the industrial personal computer; the industrial personal computer 7 is in communication connection with the upper computer, can receive control signals sent by the upper computer and can upload detection data and analysis results to the upper computer for further storage, processing analysis and visual output.
The working process of the detection device of the embodiment is as follows:
the device is moved to a threaded hole to be detected through other driving mechanisms or manually, and the primary positioning of the device is realized through the proximity switches 24 in the 2 sets of positioning systems 2. Thereafter, the positioning system jacking motor 22 drives the positioning system jacking push rod 21 to move, and pushes the expansion plug head 25, the positioning system expansion plug push rod 26 and the positioning system expansion plug motor 27 to move downwards along the expansion plug head guide rail 28. After the expansion plug head 25 moves down to the right position, the positioning system expansion plug motor 27 drives the positioning system expansion plug push rod 26 to move, so that the expansion plug head 25 expands in the main threads adjacent to the left and right of the main bolt hole to be detected to realize the fixation of the device. The main components in the positioning system 2 are fixed on the laser scanning detection system mounting bottom plate 8, and the system mounting bottom plate 8 and the device frame 3 are quickly disassembled and assembled.
After the device is fixed, a detection head moving motor 18 in the laser scanning detection system 1 moves, and drives a detection head moving frame 13 and a structure fixed on the detection head moving frame 14 to move downwards to the bottom of a main bolt hole through a coupler 17, a detection head moving lead screw 15 and a detection head moving guide rail 16. And then, the detection head rotating motor 13 drives the rotating shaft 11 and the video detection head 9 and the laser detection head 10 at the tail end of the rotating shaft to rotate after being decelerated by the rotating platform 12, so that the scanning detection of the inner surface of the main bolt hole is realized, and the surface structure parameters of the main bolt hole are obtained. The rotating shaft 11 rotates for 360 degrees and then rotates reversely (to solve the problem of line winding), meanwhile, the detection head moving motor drives the detection head to move upwards, and spiral scanning or step-by-step scanning detection on the inner surface of the main bolt hole can be achieved according to detection requirements.
The surface structure parameters of the main bolt hole obtained by scanning and detecting the laser detection head 10 are transmitted to a control processing system, and the key thread parameters of the main bolt hole are obtained and evaluated after being processed and analyzed by a computer. The video detection image obtained by the video detection head 10 can be used as a reference for laser scanning detection and evaluation results, so that the detection results can be reviewed.
The control processing system 4 mainly comprises a local I/O module 5, an industrial personal computer 7 and a remote computer. The industrial personal computer 7 controls the movement of the device, and transmits acquired data to the computer for analysis and processing through the I/O module 5 in a wireless mode to obtain the detection and evaluation results of the main bolt hole.
After the detection of a single main bolt hole is completed by the detection device, the laser scanning detection system 1 rotates to the initial position, the positioning system 2 moves reversely, the expansion plug head 25 is unlocked, and the jacking push rod 21 pushes the expansion plug head and other structures to the initial position. And then, the device can be manually moved or driven by a driving mechanism to the next station for detection until all detection work needing the main threaded hole is completed.
Examples
In this embodiment, by using the detection device provided in embodiment 1 and using a laser detection principle, the structural parameters of the to-be-detected main bolt hole of the nuclear reactor pressure vessel are automatically detected and obtained, so as to realize structural detection of the main bolt hole of the nuclear reactor.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The pressure vessel main bolt hole detection device is characterized by comprising a laser scanning detection system (1), a positioning system (2) and a control system;
the laser scanning detection system (1) and the positioning system (2) are both detachably mounted on the rack (3);
the positioning system (2) is used for realizing the positioning of the detection device;
the laser scanning detection system (1) is used for scanning and measuring the interior of the main bolt hole, obtaining structural parameters of the inner surface of the main bolt hole and transmitting the structural parameters to the control system;
the control system is used for receiving and processing the structural parameters of the inner surface of the main bolt hole to obtain a detection result of the main bolt hole;
the detection device comprises two groups of positioning systems (2), and the two groups of positioning systems (2) have the same structure;
the positioning system (2) comprises a positioning system bracket (20), a positioning system jacking mechanism, a positioning system mounting bottom plate (23), a proximity switch (24) and a positioning system expansion plug mechanism;
the positioning system bracket (20) is fixedly arranged on the positioning system mounting bottom plate (23);
the positioning system jacking mechanism and the proximity switch (24) are both arranged on the positioning system bracket (20);
the positioning system expanding plug mechanism is arranged on the positioning system jacking mechanism and can be driven by the positioning system jacking mechanism to move up and down along the vertical direction of the positioning system bracket (20);
the positioning system (2) is quickly assembled and disassembled with the rack (3) through a positioning system mounting bottom plate (23);
the positioning system expanding plug mechanism can drive the expanding plug head to expand in the main threaded hole to realize positioning, namely the detection device realizes fixation in the main bolt hole to be detected, which is adjacent to the left main bolt hole and the right main bolt hole, through the two groups of positioning systems (2).
2. The pressure vessel main bolt hole detection device according to claim 1, characterized in that the laser scanning detection system (1) is realized by using laser detection principle,
the laser scanning detection system (1) comprises: the device comprises a laser scanning detection system fixing support (6), a laser scanning detection system mounting bottom plate (8), a detection head, a rotating mechanism and a moving mechanism;
wherein the laser scanning detection system fixing bracket (6) is fixedly arranged on the laser scanning detection system mounting bottom plate (8);
the moving mechanism is fixedly arranged on the fixed bracket (6);
the rotating mechanism is arranged on the moving mechanism, and the moving mechanism can drive the rotating mechanism to move up and down along the vertical direction of the fixed bracket (6);
the detection head is arranged at the tail end of a rotating shaft of the rotating mechanism and can rotate under the driving of the rotating mechanism;
the detection head is used for scanning and detecting the inner surface of the main bolt hole to obtain the surface structure parameters of the main bolt hole;
the laser scanning detection system (1) is mounted on and dismounted from the rack (3) through the mounting bottom plate (8).
3. A pressure vessel king bolt hole inspection device as claimed in claim 2, wherein the inspection head comprises a video inspection head (9) and a laser inspection head (10).
4. The pressure vessel main bolt hole detection device of claim 2, characterized in that the rotation mechanism comprises a rotation shaft (11), a rotation platform (12) and a rotation motor (13);
the rotating motor (13) is fixedly arranged on the moving mechanism;
the rotating motor (13) drives the rotating shaft (11) to rotate through the rotating platform (12), and then drives the detection head arranged at the tail end of the rotating shaft (11) to rotate.
5. The pressure vessel main bolt hole detection device according to claim 2, characterized in that the moving mechanism comprises a detection head moving frame (14), a detection head moving guide rail-screw pair, a coupling (17) and a detection head moving motor (18);
the detection head moving motor (18) is fixedly arranged on the fixed support (6), and a guide rail in the detection head moving guide rail-screw pair is fixedly arranged along the vertical direction of the fixed support (6); a screw rod in the detection head moving guide rail-screw rod pair (15) is in transmission connection with the detection head moving motor (18) through a coupler (17);
the detection head moving frame (14) is arranged on the detection head moving guide rail-screw rod pair, and the detection head moving frame (14) is fixedly connected with the rotating mechanism;
the detection head moving frame (14) can move up and down along the vertical direction of the fixed support (6) under the driving of the detection head moving motor (18).
6. The pressure vessel main bolt hole detection device according to any one of claims 1-5, wherein the positioning system jacking mechanism comprises a positioning system jacking push rod (21), a positioning system jacking motor (22) and an expanding plug head moving guide rail (28);
wherein the positioning system jacking motor (22) is fixed on the positioning system bracket (20); the expansion plug head moving guide rail (28) is fixedly installed along the vertical direction of the positioning system bracket (20); the positioning system expanding plug mechanism is movably connected with the expanding plug head moving guide rail (28);
and the positioning system jacking motor (22) is in transmission connection with the positioning system jacking push rod (21) and drives the positioning system jacking push rod (21) to move, so that the positioning system expanding mechanism is driven to move up and down along the expanding plug head guide rail (28).
7. The pressure vessel main bolt hole detection device according to any one of claims 1-5, wherein the positioning system expanding plug mechanism comprises an expanding plug head (25), an expanding plug push rod (26) and an expanding plug motor (27);
the positioning system jacking mechanism drives the positioning system expanding plug mechanism to move downwards, and after the expanding plug head (25) moves downwards to the proper position, the expanding plug push rod (26) is driven to move through the expanding plug motor (27), so that the expanding plug head (25) expands in the adjacent main bolt hole of the main bolt to be detected to realize positioning.
8. The pressure vessel main bolt hole detection device according to claim 1, wherein the control system comprises an I/O module (5), an industrial personal computer (7) and an upper computer;
the laser scanning detection system (1) is in data communication with the industrial personal computer (7) through an I/O module, the laser scanning detection system (1) and the positioning system are in data communication with the industrial personal computer (7) through an I/O module (5), the laser scanning detection system can transmit detected inner surface structure parameters of the main bolt to be detected to the industrial personal computer (7) for storage and analysis and can receive a control signal issued by the industrial personal computer (7), and the positioning system (2) can upload a positioning signal to the industrial personal computer and can receive the control signal issued by the industrial personal computer (7); the industrial personal computer (7) is in communication connection with the upper computer, can receive control signals sent by the upper computer and can upload detection data and analysis results to the upper computer for further processing analysis or display output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010578995.5A CN111693253B (en) | 2020-06-23 | 2020-06-23 | Pressure vessel owner bolt hole detection device |
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